12539284 has 6 divisors (see below), whose sum is σ = 21943754. Its totient is φ = 6269640.

The previous prime is 12539279. The next prime is 12539309. The reversal of 12539284 is 48293521.

It can be written as a sum of positive squares in only one way, i.e., 6874884 + 5664400 = 2622^2 + 2380^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567407 + ... + 1567414.

Almost surely, 2^12539284 is an apocalyptic number.

It is an amenable number.

12539284 is a deficient number, since it is larger than the sum of its proper divisors (9404470).

12539284 is a wasteful number, since it uses less digits than its factorization.

12539284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134825 (or 3134823 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 12539284 is about 3541.0851444155. The cubic root of 12539284 is about 232.3223076724.

The spelling of 12539284 in words is "twelve million, five hundred thirty-nine thousand, two hundred eighty-four".